Enum for reverse lookup.

SEARCHABLE.java

public enum SEARCHABLE {
    DESCRIPTION("description"),
    NAME("name"),
    DISPLAYNAME("displayName"),
    TAGS("tags");

    final private static Set<String> _searchableFieldNames =
        Arrays.stream(SEARCHABLE.values()).map(SEARCHABLE::getFieldName).collect(Collectors.toSet());

    final private String _fieldName;

    SEARCHABLE(String fieldName) {
        _fieldName = fieldName;
    }

    public static boolean isFieldNameSearchable(String fieldName) {
        return SEARCHABLE._searchableFieldNames.contains(fieldName);
    }

    public String getFieldName() {
        return _fieldName;
    }
}